Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6100783 | Energy efficient hybrid core | Philip J. Hopkinson | 2000-08-08 |
| 4560130 | Track bolt fastener | — | 1985-12-24 |
| 4475322 | Medical see-through columns | Joseph L. Russo, Richard Sonder | 1984-10-09 |
| 4415957 | Patient light with hanger and hinge arrangement for removal without tools | — | 1983-11-15 |
| 4354330 | Flat-cornered triangular medical column | — | 1982-10-19 |